Absolutely gear way back and work back up. The new timing boost adds a lot of no load rpm and you need to gear back to find the new sweat spot. Heat is still king, but lots of timing can trick you. The motor can be reasonable temps at 3min or so and then skyrocket quickly. If you are setup for a 6min run, a full lipo run can also get away from you.
It is unfortunate that we are setting people up to be overgeared. Good thing these are pretty durable BL motors and not brushed motors or there would be a lot of smoked windings.
Tekin Prez